Like the others say, just doing it and see where you get stuck is usually the best way to success.
I am following Udemy courses on Construct 2 but am making them in Construct 3. In this way I got a very good idea about how things are done.
On this moment I am busy with the Udemy course, how to make a pinball game. A very interesting course even when it has nothing to do with the type of games I want to create (adventure, maze and puzzle). There is always something new to learn.
There are many excellent Construct 3 tutorials. LuckyRawathLucky his tutorials I find them very good. Many Construct 2 tutorials are still very usefull with Construct 3.
Personally, I like the creative process of making games. Especially the "thinking" and "planning" part are exited for me. In that stage, I come up with all kind of game play.